Home / 919,553.40-1,379,330.10-254,705.40

Finding the Fourth Proportional to 919,553.40, 1,379,330.10 and 254,705.40

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Solution

The fourth proportional to 919,553.40, 1,379,330.10 and 254,705.40 is: 382,058.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,553.40 : 1,379,330.10 = 254,705.40 : x
  2. Step 2: Convert to fraction form
    919,553.40/1,379,330.10 = 254,705.40/x
  3. Step 3: Cross multiply
    919,553.40x = 1,379,330.10 × 254,705.40
  4. Step 4: Simplify right side
    919,553.40x = 351,322,824,852.54
  5. Step 5: Solve for x
    x = 351,322,824,852.54/919,553.40
  6. Step 6: Final answer
    x = 382,058.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.